Auto repair shop · San Angelo, TX · reviewed since 2021
iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 69%88+60.9Reliability 31%93+28.6Experts Score= 90Not enough data for value, replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.90SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#16 of 68 mobile auto mechanicsiPosition by Experts Score among all companies we track in this category. · better than 78%
4.9★★★★★27 Google reviews · 24 photos
93%five-star reviews
4.88★last 12 monthsiAverage stars on reviews from the last 12 months only.
0%1–2★, last 20 reviewsiShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
Customers frequently highlight the shop's rapid response times, often arriving within an hour for emergency roadside assistance or same-day repairs. Reviewers note that staff members provide clear communication regarding diagnoses and offer fair pricing for services ranging from diesel engine work to mobile maintenance for motorhomes. While most feedback is positive, a recurring criticism in lower-rated reviews involves uncertainty about whether specific recommended parts replacements were necessary to resolve the vehicle issues.
Google rating: 4.9 out of 5 from 27 reviews (93% five-star).
Reviews on this page: 27 Google reviews (23 with written comments, 7 with photos).
Owner responses: the business replied to 26% of reviews.
Most recent review: October 13, 2026.
Service: Mobile Auto Mechanic serving San Angelo, Texas.
Data from Google, last updated October 25, 2026.
Score profile vs other mobile auto mechanics
Score per factor (100 = best)iEach factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: momentum and reliability; weakest: satisfaction.
Diesel Dynamex inc.Mobile Auto Mechanics median0 = centre, 100 = best
SatisfactioniSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Diesel Dynamex inc.: 88/100 on this factor. Category median: 87.A
88
ReliabilityiReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Diesel Dynamex inc.: 93/100 on this factor. Category median: 80.A
93
Craft & serviceiCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Not enough reviews for this factor yet. Category median: 96.–
–
ValueiValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 100.–
–
MomentumiMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Diesel Dynamex inc.: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsiReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 65.–
–
Bar = this company · dark tick = category median.
Star ratings
27 Google reviews we collected
4.9of 5
5 stars2593%
4 stars14%
3 stars14%
2 stars00%
1 star00%
Praise vs complaints
Phrases our text analysis found in 23 written reviews
100%praise
Praise44100%
Complaints00%
Topic share
How often each topic comes up in the written reviews
7topics
Speed & response1227%
Would recommend920%
Staff & attitude818%
Quality & results716%
Price & value49%
Communication25%
Honesty & trust25%
What customers talk about
We read 23 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“I want to thank Isaac for his helpful approach to immediately making it possible to see him and have him look at my truck.”
“If you’re searching for a shop that not only fixes your vehicle right the first time but also treats you with respect and honesty, look no further.”
“Your technician Zane was prompt, polite, and very informative of the repair that needed to be performed.”
“Isaac and his entire team deliver exceptional service, whether it’s a heavy-duty truck or a personal vehicle in need of attention.”
“Issac was in direct communication with me and my team on affordable parts and on site repair services 24hours a day.”
“They explained what was wrong and were honest and reasonably priced.”
“…tment is increasingly rare, they stand out as true professionals who genuinely care about their work and their customers.…”
People customers mention
Isaac5 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Recent reviews
Shanna3 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a week ago★★★★
Had a great experience. Came out within 30 minutes and got it fixed and was able to drive again. Would recommend 100%
TheLocal Guide · 288 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 3 months ago★★★★★
I want to thank Isaac for his helpful approach to immediately making it possible to see him and have him look at my truck. My daughter missed both of her appointments and he was very kind. So when I get back in town I will definitely come visit with him about some work I need done. I apologize for her missing her…
Madi7 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 months ago★★★★★
Huge shout out to Zane! He went out of his way to help me out with my tire early this morning. Im sure they had a busy morning planned and helping some random lady at the allsups was probably not part of that plan🤣 He truly showed that theres still good people out there!
Scott8 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 8 months ago★★★★★
Thank you Diesel dynamex Inc for you for your fast help response to my emergency on my Box truck repair. Your technician Zane was prompt, polite, and very informative of the repair that needed to be performed. Issac was in direct communication with me and my team on affordable parts and on site repair services…
Joseph3 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 9 months ago★★★★★
Diesel Dynamex is hands-down the best diesel repair shop I’ve come across! Isaac and his entire team deliver exceptional service, whether it’s a heavy-duty truck or a personal vehicle in need of attention.
What truly sets them apart is their unmatched dedication—Isaac routinely stays late or arrives early to ensure…
TravisLocal Guide · 25 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
This guy can do it all. A better than good service provided. My truck broke down befor scheduled apt and he stopped his day to come help me get it to his shop and gave me a ride home. A service that exceeded expectations and went above and beyond for a first time Costomer really speaks volumes on the kind of…
Had a great experience. Came out within 30 minutes and got it fixed and was able to drive again. Would recommend 100%
Response from the owner · a week ago
Thank you Shanna for giving us a call and for tanking the time to write a review . I am glad Andy got you back on the road in a timely manner. If you run into any other problems, big or small we are always here to help.
The HammerLocal Guide · 288 reviewsiTotal number of Google reviews The has written across all businesses on Google Maps, not just this one.
I want to thank Isaac for his helpful approach to immediately making it possible to see him and have him look at my truck. My daughter missed both of her appointments and he was very kind. So when I get back in town I will definitely come visit with him about some work I need done. I apologize for her missing her appointments but your willingness to accommodate gained you a customer. So thank you for being professional.
Response from the owner · 3 months ago
Isaac here. Thank you for writing us a five start review. Diesel Dynamex is always willing to help squeeze in a project whether its for a current or upcoming client. I always hope you don't need us, unfortunately new and old vehicle seem to always need upkeep. If your traveling on FM 2105 stop in anytime.
Madi Grace7 reviewsiTotal number of Google reviews Madi has written across all businesses on Google Maps, not just this one.
Huge shout out to Zane! He went out of his way to help me out with my tire early this morning. Im sure they had a busy morning planned and helping some random lady at the allsups was probably not part of that plan🤣 He truly showed that theres still good people out there!
Response from the owner · 4 months ago
Good afternoon Madi. Thank you for recognizing Zane through your awesome review. It is not a surprise to hear he helped out today. Zane always sets a perfect example for his friends and coworkers.
Scott Wade8 reviewsiTotal number of Google reviews Scott has written across all businesses on Google Maps, not just this one.
Thank you Diesel dynamex Inc for you for your fast help response to my emergency on my Box truck repair. Your technician Zane was prompt, polite, and very informative of the repair that needed to be performed. Issac was in direct communication with me and my team on affordable parts and on site repair services 24hours a day. I thank everyone at Diesel Dynamex for there help look forward to working with you guys in the future for our heavy duty equipment needs and thank you Ciara
Response from the owner · 8 months ago
Thank you Scott for recognizing the entire team. We are a small shop, but we dedicate every second of the day to providing the best experience possible. It was a pleasure working with you and we hope your trucks stay running as smooth as possible. We are always ready to help if any problems arise.
Christophe Peralt4 reviewsiTotal number of Google reviews Christophe has written across all businesses on Google Maps, not just this one.
Diesel Dynamex is hands-down the best diesel repair shop I’ve come across! Isaac and his entire team deliver exceptional service, whether it’s a heavy-duty truck or a personal vehicle in need of attention.
What truly sets them apart is their unmatched dedication—Isaac routinely stays late or arrives early to ensure every job is completed to perfection, with no detail overlooked. In an industry where that level of care and commitment is increasingly rare, they stand out as true professionals who genuinely care about their work and their customers.
If you’re searching for a shop that not only fixes your vehicle right the first time but also treats you with respect and honesty, look no further. Diesel Dynamex goes above and beyond to take care of both your rig and you. Highly recommended—especially for anyone in the San Angelo area or beyond who relies on reliable diesel service!
Response from the owner · 8 months ago
Thank you Joe for your in depth review. I appreciate you continuing to trust Diesel Dynamex with your vehicles throughout the years.
Travis EscobarLocal Guide · 25 reviewsiTotal number of Google reviews Travis has written across all businesses on Google Maps, not just this one.
This guy can do it all. A better than good service provided. My truck broke down befor scheduled apt and he stopped his day to come help me get it to his shop and gave me a ride home. A service that exceeded expectations and went above and beyond for a first time Costomer really speaks volumes on the kind of business that is ran. Highly recommend these professionals.
Price assessment: Reasonable price
Services: Exhaust, Auto engine diagnostic, Brakes
garrett nolandLocal Guide · 15 reviewsiTotal number of Google reviews garrett has written across all businesses on Google Maps, not just this one.
I’ve got nothing but good to say about Issac and Joe. I’ve been taking my trucks to them for 2 years. Normally when something goes wrong with my trucks it’s never been the simple easy fix it’s always some weird complicated stupid shit that nobody else can seem to figure out. I’ve taken my trucks to other shops in midland where I run and they would either not fix the actual problem or tell me they don’t know what the heck is the matter. So I have no problem driving or getting them towed the 2 hours just so they can fix it because when he calls and says it’s ready I know it’s been done right the first time. If it wasn’t for Issac and Joe I would have went under a long time ago so I’ve got nothing but love for these guys.
Response from the owner · a year ago
Thank you for your honest review Garret. We never enjoy seeing a hard working owner operators truck in the shop. We love that we can help keep you on the road.
Oscar SalazarLocal Guide · 32 reviewsiTotal number of Google reviews Oscar has written across all businesses on Google Maps, not just this one.
These guys, Isaac and Joe are the best. They got me in and got my truck fixed and back on road asap. It was close to closing time on Good Friday and they took me in and did great work. Give these guys a shot next time you’re in need. My pick up is a 2023 GMC Sierra 3500 for reference.
Tony Prieto (T.P.)7 reviewsiTotal number of Google reviews Tony has written across all businesses on Google Maps, not just this one.
I called Isaac and he showed up within an hour and knocked out the job in a very timely manner and doubled checked everything like a professional! I will most definitely be using Diesel Dynamex again and I will definitely recommend to anybody needing a professional diesel service job done!
